DEN 112 RHS Anatomy Study Material

Cortical Bone

dense outer layer of bone

(radiopaque)

Cancellous Bone

soft spongy bone between cortical plates

(radiolucent)

Incisive Foramen

small round radiolucent area between roots of max centrals

(radiolucent)

Superior Foramina of Incisive Canal

two tiny openings on the floor of the nasal cavity

(radiolucent)

Median Palatal Suture

thin radiolucent line between roots of max centrals

(radiolucent)

Lateral Fossa

radiolucent area between max canine and lateral (aka canine fossa)

(radiolucent)

Nasal Cavity/Fossa

large radiolucent area above the max incisors (aka nasal fossa)

(radiolucent)

Nasal Septum

vertical radiopaque divider in the nasal cavity

(radiopaque)

Floor of Nasal Cavity

dense radiopaque band of bone above the max incisors

(radiopaque)

Anterior Nasal Spine

v-shaped radiopaque area at base of nasal septum

(radiopaque)

Inferior Nasal Conchae

diffuse radiopaque projection in the nasal cavity

(radiopaque)

Maxillary Sinus

radiolucent area located above the apices of the premolar/molar areas in maxilla

(radiolucent)

Maxillary Tuberosity

radiopaque bulge distal to last tooth on max arch

(radiopaque)

Hamulus

radiopaque pointy projection located distal to max tuberosity

Zygomatic Arch

J or U shaped radiopaque area superior to the maxillary 1st molar region

(radiopaque)

What surrounds the maxillary sinus?

septa

(radiopaque)

What appears in the area of the maxillary canine and premolars?

inverted-y

(radiopaque, upside down y)